11400401 has 2 divisors, whose sum is σ = 11400402. Its totient is φ = 11400400.

The previous prime is 11400397. The next prime is 11400407. The reversal of 11400401 is 10400411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11397376 + 3025 = 3376^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 11400401 - 2² = 11400397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11400407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700200 + 5700201.

It is an arithmetic number, because the mean of its divisors is an integer number (5700201).

Almost surely, 2^11400401 is an apocalyptic number.

It is an amenable number.

11400401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400401 is an equidigital number, since it uses as much as digits as its factorization.

11400401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11400401 is about 3376.4479856796. The cubic root of 11400401 is about 225.0643503182.

Adding to 11400401 its reverse (10400411), we get a palindrome (21800812).

The spelling of 11400401 in words is "eleven million, four hundred thousand, four hundred one".